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农学生长锥发育对冬小麦抗寒性的生理效应················································……刘友良丁念诚l(l)我国棉花育种方法的演进与评价·····,·······························
Physiological effects of long cone growth on winter wheat cold resistance ···················································· ······································································································································ Liu Youliang, Ding Niancheng l ················